Transcription of CHAPTER 5 Clarifiers - TN.gov
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CHAPTER 5 Clarifiers - TN.gov
January 2016 5-1 Design Criteria Ch. 5 CHAPTER 5 Clarifiers General Criteria Purpose Number of Units Arrangements Tank Configurations Flow Distribution Design Loading Primary Clarifiers Intermediate Clarifiers Final Clarifiers Weir Loading Rates Depth/Detention Time Design Details Inlets Submerged Surfaces Weir Troughs Freeboard Sludge and Scum Removal Scum Removal Sludge Removal Sludge Removal Piping Sludge Removal Control Sludge Hopper Protective and Service Facilities Operator Protection Mechanical Maintenance Access Electrical Fixtures and Controls January 2016 5-2 Design Criteria Ch. 5 Operability, Flexibility, and Reliability Scum Removal Overflow Weirs Unit Dewatering Hydraulics Sludge Removal Other Design Considerations January 2016 5-3 Design Criteria Ch.
have a minimum slope of 1.75 vertical to 1 horizontal. The underside of such structures should have a slope of 1 to 1 to prevent accumulation of scum and solids. 5.3.3 Weir Troughs Weir troughs shall be designed to prevent submergence at maximum design flow, and to maintain a velocity of at least one (1) foot per second at one-half design flow.
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